The original manufacturer replacement for the MCS ATN-3400E ATN3400E needle stylus is used with the MCS AT-3400 AT3400 phono cartridge. The stylus features a highly polished elliptical diamond for superb tracking and tracing of record grooves. It results in finer detail and harmonically complete sound quality. The stylus is made in Japan by a world-class manufacturer with a reputation for crafting musically excellent and high-quality replacement styli.